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Premium Coffee Liquid Bag with Oxygen Barrier, Light Barrier and Aroma Lock
The Guardian Pro Coffee Bag delivers ultimate preservation for precision-roasted coffee through advanced barrier technology.
ULTIMATE PRESERVATION FOR PRECISION-ROASTED COFFEE
Guardian Pro represents the pinnacle of preservation technology for specialty coffee. This premium liquid-style bag actively protects through a multi-layered defense system that defeats oxygen, neutralizes light, and captures aroma at the molecular level.
BREAKTHROUGH FILM ARCHITECTURE: TWO PATENT-PENDING STRUCTURES
We offer two film compositions engineered for specific roasting profiles and brand philosophies.
OPTION A: THE TRIPLE-SHIELD (PET/AL/PE)
The Pure Barrier Solution
Layer 1: PET (12µm) - Premium printing surface with exceptional graphic fidelity and superior puncture resistance
Layer 2: AL (9µm) - Absolute impermeable barrier with 100% oxygen and light blockade
Layer 3: PE (75µm) - Aroma-containment and structural sealing with superior heat-seal integrity
Ideal For: Single-origin medium to dark roasts, espresso blends, and coffees destined for extended shelf life.
OPTION B: THE QUAD-FORTIFICATION (PET/AL/PA/PE)
The Armored Luxury Edition
Layer 1: PET (12µm) - Crystal-grade clarity with anti-static treatment
Layer 2: AL (7µm) - Nano-laminated foil with flex-crack resistance
Layer 3: PA (15µm) - -grade reinforcement with 300% greater puncture resistance
Layer 4: PE (60µm) - Aroma-adaptive polymer matrix for selective compound retention
Ideal For: Competition-grade microlots, light roast specialty coffees, and luxury brands where packaging integrity equals brand integrity.
INTEGRATED PRESERVATION TECHNOLOGIES
Oxygen Annihilation System - Extracts 99.97% of oxygen from package headspace during sealing
Total Spectrum Light Cancellation - 100% UV and visible light blockage prevents photodegradation
Volatile Aroma Capture Matrix - 94% retention of key aroma compounds after 90 days
Precision Degassing Valve - Allows CO² outflow with zero oxygen backflow
LIQUID-FIT DESIGN ADVANTAGES
Form-Follows-Freshness Architecture - Dynamic collapse reduces headspace to under 2%
User Experience Enhancements - Tear-notch precision, magnetic-zip closure, and tactile surface
QUANTIFIABLE ROASTER BENEFITS
Freshness Metrics:
Extends freshness window from 14 days to 112+ days
87% of key flavor volatiles preserved at 90 days
0% rancidity development in high-oil dark roasts at 60 days
Business Impact:
73% decrease in stale product returns
Extended distribution capabilities to any climate or region
TECHNICAL SPECIFICATIONS
Parameter
PET/AL/PE
PET/AL/PA/PE
OTR (23°C, 0% RH)
<0.1 cc/m²/day
<0.05 cc/m²/day
WVTR (38°C, 90% RH)
<0.1 g/m²/day
<0.08 g/m²/day
Light Transmission
0%
0%
Burst Strength
450 kPa
620 kPa
Seal Strength
12 N/15mm
15 N/15mm
Minimum Run
5,000 units
5,000 units
Lead Time
21-28 days
25-35 days
APPLICATION GUIDE
Choose PET/AL/PE when:
Maximum barrier at optimal cost is required
Your coffee will face extreme temperature/humidity variations
You need classic foil-bag aesthetics with modern functionality
Choose PET/AL/PA/PE when:
Your coffee exceeds $25/250g price point
You ship internationally or via challenging logistics channels
You roast exceptionally light, preserving delicate enzymatic flavors
ORDERING INFORMATION
Minimum Order Quantity
500kg
Samples
Available ($0 - $500 USD)
Printing Plate Charge
$70 - $150 USD (one-time fee)
Packaging
Secured in cartons and palletized for international shipping
Contact us today to develop your custom coffee packaging solution.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer
Total Annual:
3000000-5000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
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